Do small mammals and birds affect reproduction of spruce and fir?
By: by Arthur C. Hart, Herschel G. Abbott, Edward R. Ladd.
Contributors: Abbott, Herschel G. 1921-; Ladd, Edward R.
Series: Research paper NE -- 110.
Publisher: Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1968
Place of publication: Upper Darby, Pa
Language: eng
Subjects: Spruce -- Diseases and pests; Fir -- Diseases and pests
Notes: Cover title.